Removable storm window sash



May 4, 1954 D. F. HOLMES 2,677,156

REMOVABLE STORM wmnow SASH Filed June 29, 1951 4 Sheets-Sheet 1 17 Y 18 INVENTOR. 37 Davis F. HoZmes,

Afiorneg May 4, 1954 REMOVABLE STORM Filed June 29, 1951 D. F. HOLMES WINDOW SASH 4 Sheets-Sheet 3 INVENTOR. Dav/as EHalnaes,

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Afforney y 4, 1954 D. F. HOLMES 2,677,156

REMOVABLE STORM WINDOW SASH Filed June 29, 1951 4 Sheets-Sheet 4 IN V EN TOR.

Davis F/vall'nes,

5571 mwam Patented May 4, 1954 NITED STATE ENT OFFICE 4 Claims.

This invention relates to a window construction and more particularly to a storm sash structure constructed so as to be readily removed from a window frame, and it consists in the constructions, arrangements and combinations herein described and claimed.

This application is a continuation in part of my pending application filed November 22, 1950, Serial Number 197,105 and which has now become abandoned. It is a particular object of the invention to provide a window frame wherein the storm sash members may be laterally moved to one side of the frame, enabling ready removal of the sash members, there being spring-tensioned guide channels for engaging the edge of the sash members and forcing the latter into oppositely disposed fixed guide channels, thus firmly holding the sash members in position within the channels, yet permitting ready sliding movements of the sash members as will be required.

It is a still further object of the invention to provide a novel construction of channel in which all parts are carried in the channel as a unit, thereby simplifying the installation of the sash in a window frame.

A further important object is the provision of a novel construction of spring and mounting means therefor, the mounting means also functioning as a means for reception of bolt devices for locking and releasing the guide channel to prevent lateral movement of the sash as well as to release the sash to permit lateral movement of the sash.

A still further object of the invention is the provision of a novel locking means between an upper and lower sash, permitting adjustment of the sash with respect to each other for ventilation purposes, yet prevent movement beyond the adjusted position.

A further object of the invention is to provide a novel construction of sash guide channel adapted to slidably mount a window sash within a frame, the channel being provided with a passage for housing a counterbalance spring, one end of which is anchored to a lower portion of the sash while the other end of the spring is mounted on an anchorage device in the upper end of the passage, there being a closure for the channel member for housing and concealing the spring in a finished window.

Additional objects, advantages and features of invention will be apparent from the following description, considered in conjunction with the accompanying drawings, wherein,

Figure 1 is a front elevation of a window constructed in accordance with the invention.

Figure 2 is an enlarged fragmentary cross section on the line 2-2 of Figure 1.

Figure 3 is a longitudinal section on the line 33 of Figure 1.

Figure 4 is a fragmentary vertical section illus trating the mounting of the sash channels, tension springs and the counterbalance springs.

Figure 5 is a cross sectional view through one of the spring anchorage collars and illustrating a mounting bolt therefor.

Figure 6 is a cross section on the line 66 of Figure 5.

Figure 7 is an enlarged fragmentary elevational view illustrating the mounting of the tension spring.

Figure 8 is a cross section on the line 88 of Figure 7.

Figure 9 is a plan view of the spring.

Figure 10 is an enlarged fragmentary elevational view illustrating a modified form of the tension spring.

Figure 11 is a cross section on the line I lll of Figure 10.

Figure 12 is a plan view of the spring.

Figure 13 is a fragmentary front elevational view of a window and sash illustrating a lock device for the sash members.

Figure 14 is a view at right angles to Figure 13.

Figure 15 is a cross section on the line I5l5 of Figure 16.

Figure 16 is a cross section on the line l6l6 of Figure 15.

Figure 17 is a fragmentary elevation, partly in section, illustrating the bolt employed in the lock.

Figure 18 is an enlarged crosssection on the line l8-l B of Figure 1.

Figure 19 is a fragmentary perspective view of a channel member illustrating the manner of mounting the counterbalance spring and the support of a closure cover, and

Figure 20 is a fragmentary cross section illustrating a weather sealing strip cooperable with the upper sash.

There is illustrated in Figure 1 of the drawings, a window frame Iii within which there is slidable a lower storm sash H and an upper storm sash 12, as will be described, attention being invited to Figure 2 of the drawings. It will be seen that the upright l3 of the frame 10 is provided with a vertical recess Id of a transverse width to seat a pair of channel members E5 of identical construction, the channels being formed from a suitable gauge of sheet metal, preferably aluminum, and have a central lon itudinal pocket l6 of a depth to house a counterbalance spring, as will be described hereinafter. The parallel side walls ll of the pocket are bent at right angles as at 8 and thence again at right angles to form a wall !9 parallel to the walls ll, but spaced outwardly therefrom. The channel is completed by the provision of an inturned foot 20 positioned in the same plane as the wall of the pocket E5. The channels E are arranged in side by side abutting relation, as shown in Figure 2 and permanently secured in place by means of screws 2 I.

The upright l3 of the frame is arranged in opposed relation to the right l3 and is formed with a vertical recess 22 of a depth substantially greater than the recess 14 and within the recess 22 channel members [5' are mounted, of identical construction to that of the channels i5, but in addition collars 23 are provided (see Figures 4, 5 and 6) these collars forming a seat and anchorage for a tension spring 24, as will be described in further detail. The parts of the channel members :5 corresponding to like parts of the channel members [5 are designated by primed reference characters.

The springs 24 are in the form of a bowed leaf spring, one end of which is formed with a curved fulcrum 25 having an aperture 26 of a diameter to receive the collar 23 therethrough, and due to the curvature at the fulcrum, the aperture will assume a slight elliptical shape, which when applied to the collar 23 will effect a binding engagement therewith. The opposite end of the spring is formed with a fiat end 2'! adapted to slidably engage the adjacent wall of the channel $5, the end being longitudinally slotted as at 28 to receive a guide pin 29 which is suitably mounted in the wall of the channel. In the modified form of the spring, the spring 24' has a tongue 36 formed in the end 2'! which is downwardly turned at one side and next adjacent thereto is an outwardly curved heel 3!. The springs 24 and 24 may be readily assembled upon the collars 23 by presenting th aperture over the collar while the spring assumes a position at an angle to the channel member and then slightly rotating the spring about the collar so as to overlie the channel. In the form shown in Figures '7 to 9, the spring 24 is upwardly flexed so that the slot 28 may receive the guide pin 29 thcrethrough and when the spring is released the fiat end 2? is slidably contacting the adjacent wall of the channel [5. In the modified form of Fig. 10, the heel 3| will slidably contact the adjacent wall of the channel I5 while the tongue 30 will be presented in an adjacent channel defined by the walls I? and 20 of the channel member I 5'.

Two or more springs 24 or 2-4 will be employed upon each of the channel members l5 located adjacent the top and bottom thereof, or otherwise, as shown in Figure 4, and with the springs mounted upon respective collars 23, the channels are positioned within the recess 22 of the upright I 3' and secured by means of bolts 32, attention now being invited to Figures 4, 5 and 6. As shown in Figure 5, the open end of the collars 23 is press-fitted in openings in the channel to present flanges 23' upon opposite sides of the wall of the channel to rigidly secure the same, the collars projecting a suitable distance from the channel in the direction of the recess 22. The collar is provided with a wall 33 at its outer end in which there is formed a transverse slot 34 permitting passage of a transverse pin 35 of the bolts 32. The bolt 32 has a slotted head 36 for securing the bolt in the upright I 3 as well as releasing the channel l5 so as to permit lateral movement of the channel into the recess 22, as will be explained.

The pins 35 of the bolts are spaced from the heads 3'3 a distance slightly greatly than the thickness of the wall 33 of the collars so that the wall may be seated between the pin and the head, and. it will be seen that the bolts may be rotated so as to align the pins with the slots 34 and in such position, the pins 35 may pass through the slots permitting lateral inward movement of the channel. However, with the pins at right angles to the slots, as shown in Figure 6, such inward movement of the channel is prevented.

Each window sash includes a helical counterbalance spring 31, the upper end of which is connected to an anchorage lug 38 (see Figures 4 and 19) of the channel IS, the lower end of the spring being secured to a pin 39 fixed in the window sash. It will be noted that the anchorage lug 38 is positioned to that side opposite the location of the collars 23 so that the springs 31 will be to one side of the channel or pocket I6 permitting ready access to rotate the bolts 32 to lock and release the channels 15' as will be required.

In order that a nice finished appearance to the upper portion of the sash guide channels I5 and i5 may be had, a U-shaped channel member [40 (see Figure 19) is employed, the channel 43 being of a width to fit between the walls I! of the pockets i G and i 6'. The U-shaped channel member is of a length stopping slightly below the upper edge of the lower sash and similarly below the upper sash, and is secured in the pockets l6 and it only at the upper end thereof. In the present instance, oppositely disposed tongues 4| are disposed over the upper edges of the walls I! and l? of the channel members. It will be seen that if the lowermost bolts 32 are rotated to release the sash, the latter may be moved laterally to disengage th channels, and since the U-shaped channels 40 are supported only at their upper ends, they may be swung outwardly of the channels I 5 and I5, to replace the counterbalance springs or make any necessary adjustments, after which the channel members 49 may be returned to their operative positions and will then pre sent a finished appearance to the window.

In order to lock the upper and lower sash in an adjusted open or closed position, provision is made of a locking bolt 42 and as best seen in Figure 1, this bolt is mounted upon the cross rail 43 of the lower sash H in vertical alignment with the vertical stile 44 of the upper sash. For an understanding of the construction of the locking means, attention is invited to Figures 13 to 18 inclusive of the drawings, wherein a base plate 45 having a rabbeted edge supports a housing 46 which may be of any suitable dimensions such as to fit upon the stile t3 and freely pass the upper sash l2 when either of the sash members are raised or lowered. A pair of opposed walls of the housing are formed with aligned openings 4! through which there is slidably mounted a bolt 48, the cover plate 43 of the housing being provided with an elongated slot 59 through which an operating knob 55 of the bolt projects above the plate 43 so that the bolt may be reciprocated in the latching and unlatching operations. The base plate 45 and the cover plate 49 are formed with a pair of aligned openings 52 for reception of assembly and mounting screws 53. As shown the screws are positioned at opposite sides of the bolt 18, and upon one of the screws 53 there is mounted a detent spring 5 1. The spring 54 is bent to form a helix 55 adapted to embrace the screw and has a short leg 55' which engages a wall of the housing as shown. The spring 5:1 also has a long leg 55 bent inwardly of the free end thereof to form a detent 51, the detent extending to ward and slightly above the upper surface of the bolt 48 for a purpose now to be described.

As clearly shown in Figure 17, the bolt dB is formed with an aperture 58 for receiving a reduced shank 59 of the operating knob 5|, the shank being of a length less than the depth of the aperture 58 and is press-fltted in said aperture. The juncture with the shank and knob is of conical formation as shown at as forming a bearing for a small pulley 5i. The pulley 6i is located so as to position the annular groove thereof in line with the long leg 55 of the spring and it will be seen that when the bolt :38 is reciprocated the detent 5? will travel along the groove of the pulley until the detent assumes a position to one side or the other of the pulley and thus hold the bolt either in projected or retracted position.

The housing 46 is secured upon the stile 63 so that the bolt 48 will be projected the direction of the upper sash l2, as clearly shown in Figure 18. The front face of the upright stile i i of the upper sash is provided with a series of ver tically spaced bushed openings 62 into which the bolt 48 may be projected when the bolt and an opening is brought into alignment, when the sash is raised or lowered. From the foregoing, it will be seen that the upper and lower sash may be securely locked in desired raised or lowered positions.

The operation of removing a sash from the frame is as follows, it being understood that the locking bolt 48 is in released position and the laterally movable channel i5 is in a fixed position against lateral movement, by reason of the location of the pins 35 of the bolts 32, which are at right angles to the slots 3 The lower sash will be the first to be removed, and in order to attain access to the bolts 32, the U- shaped channel 40 must be removed to uncover the channel or pocket H5. The channel iil may be removed by raising it vertically so that the tongues i! are above the walls ll and drawing the channel 45) outwardly away from the channel iii. A screw driver is inserted into the lower collar 23 to engage the slot of the head 36 of the bolt 32, the latter being given a turn so as to align the pin 35 with the slot 34. The lower portion of the channel l5 may be moved laterally to remove the sash, although when desired both of the bolts 32 may be rotated to provide full release of the channel It which would be necessary to remove the lower and upper sash members. It will be noted that the lateral movement of the sash and channel [5' will disengage the sash from the channel l5 and the sash may be readily withdrawn from the window frame and disconnected from the counterbalance springs 37, for cleaning, painting or other purposes. The upper sash may likewise be removed. To return the sash to normal position in the window frame, the sash is presented into the channel i5 exerting pressure to move the channel laterally so as to align the opposite side of the sash with the channel 15. The leaf springs 24 will exert a pressure to seat the sash in respective channels. It is now only necessary to rotate the bolts 32 so that the pins 35 are at right angles to the slots 34.

It will be seen that when the sash was moved laterally, the springs 24 were flexed, the fiat portion 2'! being guided by virtue of the guide pins 29 engaged in the slots 28. In the modified form of spring shown in Figures 10 to 12, the tongue 30 will engage the adjacent side of the channel and thus will properly guide the spring during flexing movements.

In order to provide an air tight seal with the upper sash l2 and cross rail [2' of the frame, a weather strip means 53 is employed, as clearly shown in Figures 3 and 20. The cross rail i2 is formed with a transverse recess 64 for seating a channel member 65 of the weather strip. The channel member 65 has a downward extension 66 which is recurved upwardly as at G! at a slight angle to the extension 65, the terminal end 68 normally being spaced outwardly of the adjacent wall of the frame 82 as best seen in Fig ure 20. The weather strip will be formed from any suitable flexible sheet metal, so that with the raising of the upper sash to its fully closed position, as shown in Figure 3, the recurved portion 67 and the terminal end will be compressed, as shown, to effect a weather tight seal. With further reference to Figure 3, it will be noted that the cross rail 43 of the lower sash H and the cross rail '33 of the upper sash l2 are formed with interfitting tongues 69 to form a weather tight seal therebetween.

While I have shown and described a preferred form of the device, this is by way of illustration only, and I consider as my own, all such modifications in construction as fairly fall within the scope of the appended claims.

I claim:

1. A laterally movable support for slidably mounting a removable window sash in a window frame, comprising a channel member, said channel member having vertically spaced collars fixed thereto, said, collars being open at one end and having a wall at the other end, said wall having a transverse slot formed therein, a bowedl leaf spring having an opening at one end adapted to receive and frictionally bind upon respective collars, the other end of said spring being longitudinally slidable on a wall of the channel, a bolt extended through each collar and rotatably mounted in an adjacent wall of the window frame, said bolts having a transverse pin adapted to register with the slot of the collars upon rotation of the bolts in one direction and to extend at right angles to the slots when the bolts are rotated in the opposite direction, the bowed portion of said springs being adapted to contact an opposed wall of the window frame.

2. A removable window comprising a window frame having a pair of opposed vertical guides for said window, one of said guides having a transverse depth greater than the other guide, a channel member in each of said guides, the channel in the guide of lesser depth being rigidly secured, the channel in the guide of greater depth being laterally movable, collar members secured to said movable channel member, said collars being open at one end and having a wall at the other end, said wall having a transverse slot formed therein, said collars projecting into the guide of the window frame, a bowed leaf sprin having an opening at one end adapted to receive and frictionally bind upon respective collars, the

other end of said spring being longitudinally slidable on a wall of the channel member, a threaded bolt extended through each collar and rotatably secured in the wall of said guide, said bolts having a transverse pin adapted to register with the slot of the collar members upon rotation of the bolts in one direction and to extend at right angles to the slots when the bolts are rotated in the opposite direction.

3. A spring tension mounting for a removable window sash comprising a channel member having a medial longitudinal passage and having a Wall forming a guide for a window sash, a collar member rigidly secured in the wall of said passage, said collar having an open end and a wall at the other end, said wall having a slot formed therein, a bowed tension spring coinplemental to said collar, said spring having a curved apertured fulcrum adapted to receive said collar within said aperture to frictionally retain said spring, said spring being outwardly bowed to contact an adjacent wall of a recess in a window frame, the free end of said spring having a portion slidably engaging the wall of the longitudinal passage and further having a longitudinally extending slot, a guide pin fixed in the channel and extended through said slot for guiding the flexing action of the spring, and a threaded bolt extending through said collar and engaged in the wall of the recess of the window frame, said bolt having a transverse pin adapted to align with the slot in the wall of the collar upon partial rotation thereof.

4. A spring tension mounting for a removable window sash comprising a channel member having a medial longitudinal passage and having a wall forming a guide for a window sash, a collar member rigidly secured in the wall of said passage, said collar having an open end and a wall at the other end, said wall having a slot formed therein, a bowed tension spring complemental to said collar, said spring having a curved apertured fulcrum adapted to receive said collar within said aperture to frictionally retain said spring, said spring being outwardly bowed to contact an adjacent Wall of a recess in a window frame, the free end of said spring having a portion slidably engaging the wall of the longitudinal passage and further having a divergent tongue extended into the channel at the side of said passage for guiding the flexing action of the spring, and a threaded bolt extending through said collar and engaged in the wall of the recess of the window frame, said bolt having a transverse pin adapted to align with the slot in the wall of the collar upon partial rotation thereof.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,203,281 Turner Oct. 31, 1916 2,203,427 Dautrick June 4, 1940 2,264,020 Dautrick et a1 Nov. 25, 1941 2,270,315 Kreuger Jan. 20, 1942 2,288,558 Vose June 30, 1942 2,481,721 Carper Sept. 13, 1949 2,631,336 Weissman Mar. 17, 1953 

